Every day one paid Android app becomes free for 24 hours!

The world’s biggest QR Code is located in China: it was drawn into the fields and measures more than 36,100m² ! The only way to scan it, however, is from an airplane…

And if ever you should find yourself flying over it, you’ll need “QR Code Reader” to decode it. This app lets you read most barcodes: ISBN, EAN, UPC, etc. It’s just as easy to use as a camera, so have a ball!

Today get the ad-free version of “QR Code Reader”, normally £3.99, absolutely free.

The Keaton Music Typewriter is a special kind of typewriter, for it lets you type scores of music! The hard part is reading them afterwards…

That’s where “Music Tutor”, our app of the day, comes in handy. With regular practice, you’ll learn how to decrypt a score and recognize a note by ear. The app calculates your rate of efficiency and there are several levels of difficulty to help you progress.

Today get the premium, ad-free version of “Music Tutor”, a £1.49 value, absolutely free.

Geoffrey Parker, a traditional British manufacturer, created the world’s most expensive Backgammon game: it costs $387,890, and is made from gold, diamonds, and white gold…

“Backgammon – Online” is exactly the same game, but it’s totally free! Enjoy this great classic on your smartphone with online features allowing you to square off against players from all over the world.

Today get the ad-free version of “Backgammon – Online”, a £0.79 value, absolutely free.

And by downloading today you'll get the PRO version of the app for free instead of paying 1.99€. Simply go into “Settings" > "Enter Promotion Code" and enter the promotion code “appoftheday”. Click button “Redeem Code” and then restart the app!

Waterspouts, a kind of tornado, have been responsible for many strange things “raining” from the sky: frogs, fish, even golf balls. Not exactly fun, unlike our app of the day…

In “Swipeout,” your task is to swipe the like-colored squares together to clear them off the board as fast as you can. With over 200 levels and varying objectives to accomplish, your reflexes will be put to the test!

“Swipeout”, complete with a bonus premium pack unlocking the story mode, drops in price today from £1.76 to £0.